(s)  
Make sure the narrow pointer flags on the two RDDMIs are out of view.

 (t)  
Close this circuit breaker:

 1)  P6 Load Control Center - Right
 a) VOR/LOC-2

 (u)  
Make sure the navigation warning flags on the two HSIs are out of view.

 (v)  
Make sure the pointer flags on the two RDDMIs are out of view.

 (w)  
Set the VHF NAV transfer switch to the NORMAL position.

 (x)  
Open this circuit breaker:

 1)  P6 Load Control Center - Right
 a) VOR/LOC-2

 (y)  
Make sure the navigation warning flags show on the two HSIs.

 (z)
Make sure the wide pointer flags show on the two RDDMIs. (aa) Make sure the narrow pointer flags on the two RDDMIs are out of view. (ab) Close this circuit breaker: 1) P6 Load Control Center - Right a) VOR/LOC-2 (ac) Make sure the navigation warning flags on the two HSIs are out

 of view. (ad) Make sure the pointer flags on the two RDDMIs are out of view.
 H.  VHF NAV Transfer Switch Test
 S 715-017
 (1)  Do the VHF NAV transfer switch test:
 (a)  
Do the prepare for the operational test.

 (b)  
Set the VHF NAV transfer switch to the BOTH ON 1 position.

 (c)  
Do the self-test for system No. 1.

 1)  Make sure the captain's and the first officer's self-test displays are the same.

 (d)  
Set the VHF NAV transfer switch to the BOTH ON 2 position.

 (e)  
Do the self-test for system No. 2.

 1)  Make sure the captain's and the first officer's self-test displays are the same.

 (f)  
Set the VHF NAV transfer switch to the NORMAL position.

 (g)  
Make sure the system annunciator on the captain's HSI shows 1.

 (h)  
Make sure the system annunciator on the first officer's HSI shows 2.

 I.  Heading Input Test
 S 715-019
 (1)  Do the heading input test:
 (a)  
Do the prepare for the operational test.

 (b)  
Set the SYS DSPL switch on the IRS ISDU to the L position.

 (c)  
Hold the DSPL SEL switch in the TEST position.

 1)  Make sure the narrow bearing pointers on the two RDDMIs follow the left IRS heading.
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 ú ú 02 Page 509 ú Jul 15/94

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 (d)  
Release the DSPL SEL switch.

 (e)  
Set the COMPASS transfer switch to the BOTH ON 1 position.

 (f)  
Hold the DSPL SEL switch in the TEST position.

 1)  Make sure the bearing pointers and the compass cards on the two RDDMIs follow the left IRS heading.

 (g)  
Release the DSPL SEL switch.

 (h)  
Set the COMPASS transfer switch to the NORMAL position.

 (i)  
Set the SYS DSPL switch on the IRS ISDU to the R position.

 (j)  
Hold the DSPL SEL switch on the IRS ISDU in the TEST position.

 1)  Make sure the bearing pointers and the compass cards on the two RDDMIs follow the right IRS heading.

 (k)  
Release the DSPL SEL switch.

 (l)  
Set the COMPASS transfer switch to the BOTH ON 2 position.

 (m)  
Hold the DSPL SEL switch on the IRS ISDU in the TEST position.

 1)  Make sure the bearing pointers and the compass cards on the two RDDMIs follow the right IRS heading.

 (n)  
Release the DSPL SEL switch.

 (o)  
Set the COMPASS transfer switch to the NORMAL position.

 S 865-021
 (2)  Remove electrical power if it is not necessary (AMM 24-22-00/201).
 TASK 34-31-00-735-022
 3.  System Test - VOR/ILS Navigation System_______________________________________
 A.  General
 (1)  
The system test uses a ramp test set to supply VOR and ILS test signals. These test signals are used to do an inspection of the VOR/ILS navigation system. This task makes sure the VOR/ILS navigation system operates correctly.
　
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